Definition

A meniscal tear is a tear in the meniscus. The meniscus is cartilage, which acts as a shock-absorbing structure in the knee. There are 2 menisci in each knee, a medial one on the inside, and a lateral one on the outside.

There are different types of tears depending on the location and how they look. Treatment depends on the severity of the tear.

Torn Meniscus

Causes

Most injuries to the meniscus are caused by trauma. This usually includes compression and twisting of the knee. Because the aging process tends to break down the inner tissues of the meniscus, minor trauma can injure the meniscus in an older adult.

Risk Factors

Older adults and men are at increased risk. Factors that may increase your risk of:

Degenerative tears:

Occupations that involve kneeling and squatting

Climbing stairs

Previous knee injuries

Obesity

Acute tears:

Participating in contact sports, such as soccer or rugby

Poor techniques for jumping, landing, pivoting, and cutting

Symptoms

Symptoms may include:

A popping sound at the time of the injury

Pain and swelling in the knee

Tightness in the knee

Locking up, catching, or giving way of the knee

Tenderness in the joint

Diagnosis

You will be asked about your symptoms and medical history. A physical exam will be done.

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